You do realize that this Emerson poll shows Cruz's lead GROWING since their last poll, don't you? You can't look at a fox poll that shows a 10-point lead, and then look at an Emerson poll that shows a 5 point lead and conclude that his numbers are falling - you can't compare polls from different companies that way. You look at the change from the last poll from the same company to determine the movement, which show his numbers gaining in this poll, not falling...
I did not realize that...that prior Emerson poll slipped by me, good catch.